package com.back.demo.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * Redis配置类，实现序列化
 */
@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();

        // key的序列化
        redisTemplate.setKeySerializer(new StringRedisSerializer());

        // value的序列化
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer()); //产生的是Java字符串，不需要传入类对象
        // redisTemplate.setValueSerializer(new Jackson2JsonRedisSerializer<Object>(...)); //产生的是Java字符串，需要传入类对象
        // redisTemplate.setValueSerializer(new JdkSerializationRedisSerializer()); // 产生的是二进制，不需要传入类对象

        // hash类型key的序列化
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());

        // hash类型value的序列化
        redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());

        // 注入连接工厂
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        return redisTemplate;
    }
}

